Numerical simulation of fluid and compressible solid coupling using Modified Ghost Fluid Method and Hydro-Elasto-Plastic equation of state

2015 ◽  
Author(s):  
Ru-Chao Shi ◽  
Yong-Chi Li
Keyword(s):  
Numerical Simulation ◽  
Equation Of State ◽  
Ghost Fluid Method ◽  
Modified Ghost Fluid Method

scholarly journals Equation of state for rhodium at high pressures

2021 ◽  
Vol 2057 (1) ◽  
pp. 012118
Author(s):  
K V Khishchenko
Keyword(s):  
Experimental Data ◽  
Numerical Simulation ◽  
Equation Of State ◽  
Internal Energy ◽  
Specific Volume ◽  
High Pressures ◽  
Thermodynamic Characteristics ◽  
Wide Range ◽  
Hydrodynamic Processes

Abstract An equation of state has been developed for rhodium in a wide range of changes in the specific volume and internal energy. The results of calculations of the thermodynamic characteristics of this metal are presented in comparison with the available experimental data at high pressures. This equation of state can be used in the numerical simulation of hydrodynamic processes under intense impulse influences on matter.

The Modified Ghost Fluid Method Applied to Fluid-Elastic Structure Interaction

2011 ◽  
Vol 3 (5) ◽  
pp. 611-632 ◽  
Author(s):  
Tiegang Liu ◽  
A. W. Chowdhury ◽  
Boo Cheong Khoo
Keyword(s):  
Wave Interaction ◽  
Elastic Solid ◽  
Coupled System ◽  
Normal Direction ◽  
Ghost Fluid Method ◽  
Structure Interaction ◽  
Solid States ◽  
Numerical Tests ◽  
Nonlinear Wave Interaction ◽  
Modified Ghost Fluid Method

AbstractIn this work, the modified ghost fluid method is developed to deal with 2D compressible fluid interacting with elastic solid in an Euler-Lagrange coupled system. In applying the modified Ghost Fluid Method to treat the fluid-elastic solid coupling, the Navier equations for elastic solid are cast into a system similar to the Euler equations but in Lagrangian coordinates. Furthermore, to take into account the influence of material deformation and nonlinear wave interaction at the interface, an Euler-Lagrange Riemann problem is constructed and solved approximately along the normal direction of the interface to predict the interfacial status and then define the ghost fluid and ghost solid states. Numerical tests are presented to verify the resultant method.

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